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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1 | - | 1 | |
| 2 | .LIST on |
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| 3 | ; ACIA page 0 local var's |
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| 4 | SERDP: .SECTION page0, ref_only, offset aciap0 |
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| 5 | SERDP_START .EQU $ |
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| 6 | |||
| 7 | ; acia 1 var's |
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| 8 | aisr .DB ; interrupt status register |
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| 9 | acsr .DB ; control status register |
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| 10 | afr .DB ; format register |
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| 11 | aout .DB ; XON/XOFF sending flag |
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| 12 | |||
| 13 | ; acia 2 var's |
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| 14 | .DS 4 |
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| 15 | |||
| 16 | ;---------------------------------------------------------------------------- |
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| 17 | |||
| 18 | ; acia 1 flag's |
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| 19 | ahsk .DB ; handshake flag |
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| 20 | ; <7>: handshake on |
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| 21 | ; <6>: hardware handshake (RTS,CTS) |
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| 22 | |||
| 23 | apause .DB ; local/remote pause flag |
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| 24 | ; <7>: remote pause (XOFF/RTS=1) |
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| 25 | ; <6>: local pause (XON/CTS=1) |
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| 26 | |||
| 27 | arxe .DB ; rx data error flag |
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| 28 | ; <7>: rx error (data discarded) |
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| 29 | ; <6>: rx buffer overflow |
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| 30 | ; <5>: remote disconnession |
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| 31 | ; <2>: framing error |
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| 32 | ; <1>: parity error |
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| 33 | ; <0>: overrun error |
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| 34 | |||
| 35 | arem .DB ; format register or'ing for remote pause |
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| 36 | |||
| 37 | ; acia 2 flag's |
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| 38 | .DS 4 |
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| 39 | |||
| 40 | ;---------------------------------------------------------------------------- |
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| 41 | |||
| 42 | ; acia 1 control line |
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| 43 | adsrt .DB ; DSR,DCD,CTS transition status |
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| 44 | ; <7>: DSRT, <6>: CTST, <5>: DCDT |
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| 45 | |||
| 46 | adsrl .DB ; DSR,DCD,CTS level status |
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| 47 | ; <7>: DSRL, <6>: CTSL, <5>: DCDL |
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| 48 | |||
| 49 | amask .DB ; and mask for check remote disconnession |
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| 50 | ; <7>: check DSR line - <5>: check DCD line |
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| 51 | |||
| 52 | aptr .DB ; save acia pointer while ISR |
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| 53 | |||
| 54 | ; acia 2 control line |
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| 55 | .DS 3 |
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| 56 | .DB |
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| 57 | |||
| 58 | ;---------------------------------------------------------------------------- |
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| 59 | |||
| 60 | ; buffer pointers |
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| 61 | rxptr .DW ; pointer to rx buffer |
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| 62 | txptr .DW ; pointer to tx buffer |
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| 63 | rxptr2 .DW |
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| 64 | txptr2 .DW |
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| 65 | |||
| 66 | ;---------------------------------------------------------------------------- |
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| 67 | |||
| 68 | ; tail pointers |
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| 69 | aicnt .DW ; size of input tail queue |
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| 70 | aitail .DW ; pointer to input tail queue |
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| 71 | |||
| 72 | SERDP_SIZ .EQU ($-FSTMP_START) |
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| 73 | .ENDS |
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| 74 | .LIST off |